Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE
Model Number Label: Engine
FA24FXZHGA
| Digits | Code | Meaning | Details |
|---|---|---|---|
| 1 and 2 | FA | Engine type symbol | FA: 4 cylinder gasoline FB: 4 cylinder gasoline |
| 3 and 4 | 24 | Displacement | 24: 2.4 L 25: 2.5 L |
| 5 | F | Valve train/fuel supply system/steering | D: DOHC DI non-turbo (LH) F: DOHC DIT (LH) |
| 6 | X | Exhaust regulations | X: U.S. (Tier 3/LEV 3) |
| 7 | Z | Intake/exhaust system | Z: Intake AVCS, exhaust AVCS, TGV, EGR |
| 8 | H | Mounted transmission | H: CVT |
| 9 and 10 | GA | Detailed specifications | Used when ordering parts. |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.